Paper animal, possibly (6)
I believe the answer is:
manila
'paper' is the definition.
(manila paper is a kind of paper)
'animal possibly' is the wordplay.
'possibly' indicates an anagram.
'animal' with letters rearranged gives 'MANILA'.
(Other definitions for manila that I've seen before include "Island capital" , "Strong brown paper; cigar, cheroot" , "Adulterated, tainted" , "Animal or capital in the Phillipines" , "Brown paper and Philippine city" .)